ALSA project - the C library reference
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00001 00012 /* 00013 * This library is free software; you can redistribute it and/or modify 00014 * it under the terms of the GNU Lesser General Public License as 00015 * published by the Free Software Foundation; either version 2.1 of 00016 * the License, or (at your option) any later version. 00017 * 00018 * This program is distributed in the hope that it will be useful, 00019 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00020 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00021 * GNU Lesser General Public License for more details. 00022 * 00023 * You should have received a copy of the GNU Lesser General Public 00024 * License along with this library; if not, write to the Free Software 00025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00026 * 00027 */ 00028 00029 #ifndef __ALSA_PCM_H 00030 #define __ALSA_PCM_H 00031 00032 #ifdef __cplusplus 00033 extern "C" { 00034 #endif 00035 00043 #define SND_PCM_DLSYM_VERSION _dlsym_pcm_001 00044 00046 typedef struct _snd_pcm_info snd_pcm_info_t; 00047 00062 typedef struct _snd_pcm_hw_params snd_pcm_hw_params_t; 00063 00065 typedef struct _snd_pcm_sw_params snd_pcm_sw_params_t; 00067 typedef struct _snd_pcm_status snd_pcm_status_t; 00069 typedef struct _snd_pcm_access_mask snd_pcm_access_mask_t; 00071 typedef struct _snd_pcm_format_mask snd_pcm_format_mask_t; 00073 typedef struct _snd_pcm_subformat_mask snd_pcm_subformat_mask_t; 00074 00076 typedef enum _snd_pcm_class { 00079 SND_PCM_CLASS_GENERIC = 0, 00081 SND_PCM_CLASS_MULTI, 00083 SND_PCM_CLASS_MODEM, 00085 SND_PCM_CLASS_DIGITIZER, 00086 SND_PCM_CLASS_LAST = SND_PCM_CLASS_DIGITIZER 00087 } snd_pcm_class_t; 00088 00090 typedef enum _snd_pcm_subclass { 00092 SND_PCM_SUBCLASS_GENERIC_MIX = 0, 00094 SND_PCM_SUBCLASS_MULTI_MIX, 00095 SND_PCM_SUBCLASS_LAST = SND_PCM_SUBCLASS_MULTI_MIX 00096 } snd_pcm_subclass_t; 00097 00099 typedef enum _snd_pcm_stream { 00101 SND_PCM_STREAM_PLAYBACK = 0, 00103 SND_PCM_STREAM_CAPTURE, 00104 SND_PCM_STREAM_LAST = SND_PCM_STREAM_CAPTURE 00105 } snd_pcm_stream_t; 00106 00108 typedef enum _snd_pcm_access { 00110 SND_PCM_ACCESS_MMAP_INTERLEAVED = 0, 00112 SND_PCM_ACCESS_MMAP_NONINTERLEAVED, 00114 SND_PCM_ACCESS_MMAP_COMPLEX, 00116 SND_PCM_ACCESS_RW_INTERLEAVED, 00118 SND_PCM_ACCESS_RW_NONINTERLEAVED, 00119 SND_PCM_ACCESS_LAST = SND_PCM_ACCESS_RW_NONINTERLEAVED 00120 } snd_pcm_access_t; 00121 00123 typedef enum _snd_pcm_format { 00125 SND_PCM_FORMAT_UNKNOWN = -1, 00127 SND_PCM_FORMAT_S8 = 0, 00129 SND_PCM_FORMAT_U8, 00131 SND_PCM_FORMAT_S16_LE, 00133 SND_PCM_FORMAT_S16_BE, 00135 SND_PCM_FORMAT_U16_LE, 00137 SND_PCM_FORMAT_U16_BE, 00139 SND_PCM_FORMAT_S24_LE, 00141 SND_PCM_FORMAT_S24_BE, 00143 SND_PCM_FORMAT_U24_LE, 00145 SND_PCM_FORMAT_U24_BE, 00147 SND_PCM_FORMAT_S32_LE, 00149 SND_PCM_FORMAT_S32_BE, 00151 SND_PCM_FORMAT_U32_LE, 00153 SND_PCM_FORMAT_U32_BE, 00155 SND_PCM_FORMAT_FLOAT_LE, 00157 SND_PCM_FORMAT_FLOAT_BE, 00159 SND_PCM_FORMAT_FLOAT64_LE, 00161 SND_PCM_FORMAT_FLOAT64_BE, 00163 SND_PCM_FORMAT_IEC958_SUBFRAME_LE, 00165 SND_PCM_FORMAT_IEC958_SUBFRAME_BE, 00167 SND_PCM_FORMAT_MU_LAW, 00169 SND_PCM_FORMAT_A_LAW, 00171 SND_PCM_FORMAT_IMA_ADPCM, 00173 SND_PCM_FORMAT_MPEG, 00175 SND_PCM_FORMAT_GSM, 00177 SND_PCM_FORMAT_SPECIAL = 31, 00179 SND_PCM_FORMAT_S24_3LE = 32, 00181 SND_PCM_FORMAT_S24_3BE, 00183 SND_PCM_FORMAT_U24_3LE, 00185 SND_PCM_FORMAT_U24_3BE, 00187 SND_PCM_FORMAT_S20_3LE, 00189 SND_PCM_FORMAT_S20_3BE, 00191 SND_PCM_FORMAT_U20_3LE, 00193 SND_PCM_FORMAT_U20_3BE, 00195 SND_PCM_FORMAT_S18_3LE, 00197 SND_PCM_FORMAT_S18_3BE, 00199 SND_PCM_FORMAT_U18_3LE, 00201 SND_PCM_FORMAT_U18_3BE, 00202 SND_PCM_FORMAT_LAST = SND_PCM_FORMAT_U18_3BE, 00203 00204 #if __BYTE_ORDER == __LITTLE_ENDIAN 00205 00206 SND_PCM_FORMAT_S16 = SND_PCM_FORMAT_S16_LE, 00208 SND_PCM_FORMAT_U16 = SND_PCM_FORMAT_U16_LE, 00210 SND_PCM_FORMAT_S24 = SND_PCM_FORMAT_S24_LE, 00212 SND_PCM_FORMAT_U24 = SND_PCM_FORMAT_U24_LE, 00214 SND_PCM_FORMAT_S32 = SND_PCM_FORMAT_S32_LE, 00216 SND_PCM_FORMAT_U32 = SND_PCM_FORMAT_U32_LE, 00218 SND_PCM_FORMAT_FLOAT = SND_PCM_FORMAT_FLOAT_LE, 00220 SND_PCM_FORMAT_FLOAT64 = SND_PCM_FORMAT_FLOAT64_LE, 00222 SND_PCM_FORMAT_IEC958_SUBFRAME = SND_PCM_FORMAT_IEC958_SUBFRAME_LE 00223 #elif __BYTE_ORDER == __BIG_ENDIAN 00224 00225 SND_PCM_FORMAT_S16 = SND_PCM_FORMAT_S16_BE, 00227 SND_PCM_FORMAT_U16 = SND_PCM_FORMAT_U16_BE, 00229 SND_PCM_FORMAT_S24 = SND_PCM_FORMAT_S24_BE, 00231 SND_PCM_FORMAT_U24 = SND_PCM_FORMAT_U24_BE, 00233 SND_PCM_FORMAT_S32 = SND_PCM_FORMAT_S32_BE, 00235 SND_PCM_FORMAT_U32 = SND_PCM_FORMAT_U32_BE, 00237 SND_PCM_FORMAT_FLOAT = SND_PCM_FORMAT_FLOAT_BE, 00239 SND_PCM_FORMAT_FLOAT64 = SND_PCM_FORMAT_FLOAT64_BE, 00241 SND_PCM_FORMAT_IEC958_SUBFRAME = SND_PCM_FORMAT_IEC958_SUBFRAME_BE 00242 #else 00243 #error "Unknown endian" 00244 #endif 00245 } snd_pcm_format_t; 00246 00248 typedef enum _snd_pcm_subformat { 00250 SND_PCM_SUBFORMAT_STD = 0, 00251 SND_PCM_SUBFORMAT_LAST = SND_PCM_SUBFORMAT_STD 00252 } snd_pcm_subformat_t; 00253 00255 typedef enum _snd_pcm_state { 00257 SND_PCM_STATE_OPEN = 0, 00259 SND_PCM_STATE_SETUP, 00261 SND_PCM_STATE_PREPARED, 00263 SND_PCM_STATE_RUNNING, 00265 SND_PCM_STATE_XRUN, 00267 SND_PCM_STATE_DRAINING, 00269 SND_PCM_STATE_PAUSED, 00271 SND_PCM_STATE_SUSPENDED, 00273 SND_PCM_STATE_DISCONNECTED, 00274 SND_PCM_STATE_LAST = SND_PCM_STATE_DISCONNECTED 00275 } snd_pcm_state_t; 00276 00278 typedef enum _snd_pcm_start { 00280 SND_PCM_START_DATA = 0, 00282 SND_PCM_START_EXPLICIT, 00283 SND_PCM_START_LAST = SND_PCM_START_EXPLICIT 00284 } snd_pcm_start_t; 00285 00287 typedef enum _snd_pcm_xrun { 00289 SND_PCM_XRUN_NONE = 0, 00291 SND_PCM_XRUN_STOP, 00292 SND_PCM_XRUN_LAST = SND_PCM_XRUN_STOP 00293 } snd_pcm_xrun_t; 00294 00296 typedef enum _snd_pcm_tstamp { 00298 SND_PCM_TSTAMP_NONE = 0, 00300 SND_PCM_TSTAMP_ENABLE, 00304 SND_PCM_TSTAMP_MMAP = SND_PCM_TSTAMP_ENABLE, 00305 SND_PCM_TSTAMP_LAST = SND_PCM_TSTAMP_ENABLE 00306 } snd_pcm_tstamp_t; 00307 00309 typedef unsigned long snd_pcm_uframes_t; 00311 typedef long snd_pcm_sframes_t; 00312 00314 #define SND_PCM_NONBLOCK 0x00000001 00315 00316 #define SND_PCM_ASYNC 0x00000002 00317 00318 #define SND_PCM_ABORT 0x00008000 00319 00320 #define SND_PCM_NO_AUTO_RESAMPLE 0x00010000 00321 00322 #define SND_PCM_NO_AUTO_CHANNELS 0x00020000 00323 00324 #define SND_PCM_NO_AUTO_FORMAT 0x00040000 00325 00326 #define SND_PCM_NO_SOFTVOL 0x00080000 00327 00329 typedef struct _snd_pcm snd_pcm_t; 00330 00332 enum _snd_pcm_type { 00334 SND_PCM_TYPE_HW = 0, 00336 SND_PCM_TYPE_HOOKS, 00339 SND_PCM_TYPE_MULTI, 00341 SND_PCM_TYPE_FILE, 00343 SND_PCM_TYPE_NULL, 00345 SND_PCM_TYPE_SHM, 00347 SND_PCM_TYPE_INET, 00349 SND_PCM_TYPE_COPY, 00351 SND_PCM_TYPE_LINEAR, 00353 SND_PCM_TYPE_ALAW, 00355 SND_PCM_TYPE_MULAW, 00357 SND_PCM_TYPE_ADPCM, 00359 SND_PCM_TYPE_RATE, 00361 SND_PCM_TYPE_ROUTE, 00363 SND_PCM_TYPE_PLUG, 00365 SND_PCM_TYPE_SHARE, 00367 SND_PCM_TYPE_METER, 00369 SND_PCM_TYPE_MIX, 00371 SND_PCM_TYPE_DROUTE, 00373 SND_PCM_TYPE_LBSERVER, 00375 SND_PCM_TYPE_LINEAR_FLOAT, 00377 SND_PCM_TYPE_LADSPA, 00379 SND_PCM_TYPE_DMIX, 00381 SND_PCM_TYPE_JACK, 00383 SND_PCM_TYPE_DSNOOP, 00385 SND_PCM_TYPE_DSHARE, 00387 SND_PCM_TYPE_IEC958, 00389 SND_PCM_TYPE_SOFTVOL, 00391 SND_PCM_TYPE_IOPLUG, 00393 SND_PCM_TYPE_EXTPLUG, 00395 SND_PCM_TYPE_MMAP_EMUL, 00396 SND_PCM_TYPE_LAST = SND_PCM_TYPE_MMAP_EMUL 00397 }; 00398 00400 typedef enum _snd_pcm_type snd_pcm_type_t; 00401 00403 typedef struct _snd_pcm_channel_area { 00405 void *addr; 00407 unsigned int first; 00409 unsigned int step; 00410 } snd_pcm_channel_area_t; 00411 00413 typedef union _snd_pcm_sync_id { 00415 unsigned char id[16]; 00417 unsigned short id16[8]; 00419 unsigned int id32[4]; 00420 } snd_pcm_sync_id_t; 00421 00423 typedef struct _snd_pcm_scope snd_pcm_scope_t; 00424 00425 int snd_pcm_open(snd_pcm_t **pcm, const char *name, 00426 snd_pcm_stream_t stream, int mode); 00427 int snd_pcm_open_lconf(snd_pcm_t **pcm, const char *name, 00428 snd_pcm_stream_t stream, int mode, 00429 snd_config_t *lconf); 00430 int snd_pcm_open_fallback(snd_pcm_t **pcm, snd_config_t *root, 00431 const char *name, const char *orig_name, 00432 snd_pcm_stream_t stream, int mode); 00433 00434 int snd_pcm_close(snd_pcm_t *pcm); 00435 const char *snd_pcm_name(snd_pcm_t *pcm); 00436 snd_pcm_type_t snd_pcm_type(snd_pcm_t *pcm); 00437 snd_pcm_stream_t snd_pcm_stream(snd_pcm_t *pcm); 00438 int snd_pcm_poll_descriptors_count(snd_pcm_t *pcm); 00439 int snd_pcm_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space); 00440 int snd_pcm_poll_descriptors_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents); 00441 int snd_pcm_nonblock(snd_pcm_t *pcm, int nonblock); 00442 static __inline__ int snd_pcm_abort(snd_pcm_t *pcm) { return snd_pcm_nonblock(pcm, 2); } 00443 int snd_async_add_pcm_handler(snd_async_handler_t **handler, snd_pcm_t *pcm, 00444 snd_async_callback_t callback, void *private_data); 00445 snd_pcm_t *snd_async_handler_get_pcm(snd_async_handler_t *handler); 00446 int snd_pcm_info(snd_pcm_t *pcm, snd_pcm_info_t *info); 00447 int snd_pcm_hw_params_current(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00448 int snd_pcm_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00449 int snd_pcm_hw_free(snd_pcm_t *pcm); 00450 int snd_pcm_sw_params_current(snd_pcm_t *pcm, snd_pcm_sw_params_t *params); 00451 int snd_pcm_sw_params(snd_pcm_t *pcm, snd_pcm_sw_params_t *params); 00452 int snd_pcm_prepare(snd_pcm_t *pcm); 00453 int snd_pcm_reset(snd_pcm_t *pcm); 00454 int snd_pcm_status(snd_pcm_t *pcm, snd_pcm_status_t *status); 00455 int snd_pcm_start(snd_pcm_t *pcm); 00456 int snd_pcm_drop(snd_pcm_t *pcm); 00457 int snd_pcm_drain(snd_pcm_t *pcm); 00458 int snd_pcm_pause(snd_pcm_t *pcm, int enable); 00459 snd_pcm_state_t snd_pcm_state(snd_pcm_t *pcm); 00460 int snd_pcm_hwsync(snd_pcm_t *pcm); 00461 int snd_pcm_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp); 00462 int snd_pcm_resume(snd_pcm_t *pcm); 00463 int snd_pcm_htimestamp(snd_pcm_t *pcm, snd_pcm_uframes_t *avail, snd_htimestamp_t *tstamp); 00464 snd_pcm_sframes_t snd_pcm_avail(snd_pcm_t *pcm); 00465 snd_pcm_sframes_t snd_pcm_avail_update(snd_pcm_t *pcm); 00466 int snd_pcm_avail_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *availp, snd_pcm_sframes_t *delayp); 00467 snd_pcm_sframes_t snd_pcm_rewindable(snd_pcm_t *pcm); 00468 snd_pcm_sframes_t snd_pcm_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t frames); 00469 snd_pcm_sframes_t snd_pcm_forwardable(snd_pcm_t *pcm); 00470 snd_pcm_sframes_t snd_pcm_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames); 00471 snd_pcm_sframes_t snd_pcm_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size); 00472 snd_pcm_sframes_t snd_pcm_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size); 00473 snd_pcm_sframes_t snd_pcm_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size); 00474 snd_pcm_sframes_t snd_pcm_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size); 00475 int snd_pcm_wait(snd_pcm_t *pcm, int timeout); 00476 00477 int snd_pcm_link(snd_pcm_t *pcm1, snd_pcm_t *pcm2); 00478 int snd_pcm_unlink(snd_pcm_t *pcm); 00479 00481 #define SND_CHMAP_API_VERSION ((1 << 16) | (0 << 8) | 1) 00482 00484 enum snd_pcm_chmap_type { 00485 SND_CHMAP_TYPE_NONE = 0, 00486 SND_CHMAP_TYPE_FIXED, 00487 SND_CHMAP_TYPE_VAR, 00488 SND_CHMAP_TYPE_PAIRED, 00489 SND_CHMAP_TYPE_LAST = SND_CHMAP_TYPE_PAIRED, 00490 }; 00491 00493 enum snd_pcm_chmap_position { 00494 SND_CHMAP_UNKNOWN = 0, 00495 SND_CHMAP_NA, 00496 SND_CHMAP_MONO, 00497 SND_CHMAP_FL, 00498 SND_CHMAP_FR, 00499 SND_CHMAP_RL, 00500 SND_CHMAP_RR, 00501 SND_CHMAP_FC, 00502 SND_CHMAP_LFE, 00503 SND_CHMAP_SL, 00504 SND_CHMAP_SR, 00505 SND_CHMAP_RC, 00506 SND_CHMAP_FLC, 00507 SND_CHMAP_FRC, 00508 SND_CHMAP_RLC, 00509 SND_CHMAP_RRC, 00510 SND_CHMAP_FLW, 00511 SND_CHMAP_FRW, 00512 SND_CHMAP_FLH, 00513 SND_CHMAP_FCH, 00514 SND_CHMAP_FRH, 00515 SND_CHMAP_TC, 00516 SND_CHMAP_TFL, 00517 SND_CHMAP_TFR, 00518 SND_CHMAP_TFC, 00519 SND_CHMAP_TRL, 00520 SND_CHMAP_TRR, 00521 SND_CHMAP_TRC, 00522 SND_CHMAP_TFLC, 00523 SND_CHMAP_TFRC, 00524 SND_CHMAP_TSL, 00525 SND_CHMAP_TSR, 00526 SND_CHMAP_LLFE, 00527 SND_CHMAP_RLFE, 00528 SND_CHMAP_BC, 00529 SND_CHMAP_BLC, 00530 SND_CHMAP_BRC, 00531 SND_CHMAP_LAST = SND_CHMAP_BRC, 00532 }; 00533 00535 #define SND_CHMAP_POSITION_MASK 0xffff 00536 00538 #define SND_CHMAP_PHASE_INVERSE (0x01 << 16) 00539 00540 #define SND_CHMAP_DRIVER_SPEC (0x02 << 16) 00541 00543 typedef struct snd_pcm_chmap { 00544 unsigned int channels; 00545 unsigned int pos[0]; 00546 } snd_pcm_chmap_t; 00547 00549 typedef struct snd_pcm_chmap_query { 00550 enum snd_pcm_chmap_type type; 00551 snd_pcm_chmap_t map; 00552 } snd_pcm_chmap_query_t; 00553 00554 00555 snd_pcm_chmap_query_t **snd_pcm_query_chmaps(snd_pcm_t *pcm); 00556 snd_pcm_chmap_query_t **snd_pcm_query_chmaps_from_hw(int card, int dev, 00557 int subdev, 00558 snd_pcm_stream_t stream); 00559 void snd_pcm_free_chmaps(snd_pcm_chmap_query_t **maps); 00560 snd_pcm_chmap_t *snd_pcm_get_chmap(snd_pcm_t *pcm); 00561 int snd_pcm_set_chmap(snd_pcm_t *pcm, const snd_pcm_chmap_t *map); 00562 00563 const char *snd_pcm_chmap_type_name(enum snd_pcm_chmap_type val); 00564 const char *snd_pcm_chmap_name(enum snd_pcm_chmap_position val); 00565 const char *snd_pcm_chmap_long_name(enum snd_pcm_chmap_position val); 00566 int snd_pcm_chmap_print(const snd_pcm_chmap_t *map, size_t maxlen, char *buf); 00567 unsigned int snd_pcm_chmap_from_string(const char *str); 00568 snd_pcm_chmap_t *snd_pcm_chmap_parse_string(const char *str); 00569 00570 //int snd_pcm_mixer_element(snd_pcm_t *pcm, snd_mixer_t *mixer, snd_mixer_elem_t **elem); 00571 00572 /* 00573 * application helpers - these functions are implemented on top 00574 * of the basic API 00575 */ 00576 00577 int snd_pcm_recover(snd_pcm_t *pcm, int err, int silent); 00578 int snd_pcm_set_params(snd_pcm_t *pcm, 00579 snd_pcm_format_t format, 00580 snd_pcm_access_t access, 00581 unsigned int channels, 00582 unsigned int rate, 00583 int soft_resample, 00584 unsigned int latency); 00585 int snd_pcm_get_params(snd_pcm_t *pcm, 00586 snd_pcm_uframes_t *buffer_size, 00587 snd_pcm_uframes_t *period_size); 00588 00598 size_t snd_pcm_info_sizeof(void); 00603 #define snd_pcm_info_alloca(ptr) __snd_alloca(ptr, snd_pcm_info) 00604 int snd_pcm_info_malloc(snd_pcm_info_t **ptr); 00605 void snd_pcm_info_free(snd_pcm_info_t *obj); 00606 void snd_pcm_info_copy(snd_pcm_info_t *dst, const snd_pcm_info_t *src); 00607 unsigned int snd_pcm_info_get_device(const snd_pcm_info_t *obj); 00608 unsigned int snd_pcm_info_get_subdevice(const snd_pcm_info_t *obj); 00609 snd_pcm_stream_t snd_pcm_info_get_stream(const snd_pcm_info_t *obj); 00610 int snd_pcm_info_get_card(const snd_pcm_info_t *obj); 00611 const char *snd_pcm_info_get_id(const snd_pcm_info_t *obj); 00612 const char *snd_pcm_info_get_name(const snd_pcm_info_t *obj); 00613 const char *snd_pcm_info_get_subdevice_name(const snd_pcm_info_t *obj); 00614 snd_pcm_class_t snd_pcm_info_get_class(const snd_pcm_info_t *obj); 00615 snd_pcm_subclass_t snd_pcm_info_get_subclass(const snd_pcm_info_t *obj); 00616 unsigned int snd_pcm_info_get_subdevices_count(const snd_pcm_info_t *obj); 00617 unsigned int snd_pcm_info_get_subdevices_avail(const snd_pcm_info_t *obj); 00618 snd_pcm_sync_id_t snd_pcm_info_get_sync(const snd_pcm_info_t *obj); 00619 void snd_pcm_info_set_device(snd_pcm_info_t *obj, unsigned int val); 00620 void snd_pcm_info_set_subdevice(snd_pcm_info_t *obj, unsigned int val); 00621 void snd_pcm_info_set_stream(snd_pcm_info_t *obj, snd_pcm_stream_t val); 00622 00632 int snd_pcm_hw_params_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00633 00634 int snd_pcm_hw_params_can_mmap_sample_resolution(const snd_pcm_hw_params_t *params); 00635 int snd_pcm_hw_params_is_double(const snd_pcm_hw_params_t *params); 00636 int snd_pcm_hw_params_is_batch(const snd_pcm_hw_params_t *params); 00637 int snd_pcm_hw_params_is_block_transfer(const snd_pcm_hw_params_t *params); 00638 int snd_pcm_hw_params_is_monotonic(const snd_pcm_hw_params_t *params); 00639 int snd_pcm_hw_params_can_overrange(const snd_pcm_hw_params_t *params); 00640 int snd_pcm_hw_params_can_pause(const snd_pcm_hw_params_t *params); 00641 int snd_pcm_hw_params_can_resume(const snd_pcm_hw_params_t *params); 00642 int snd_pcm_hw_params_is_half_duplex(const snd_pcm_hw_params_t *params); 00643 int snd_pcm_hw_params_is_joint_duplex(const snd_pcm_hw_params_t *params); 00644 int snd_pcm_hw_params_can_sync_start(const snd_pcm_hw_params_t *params); 00645 int snd_pcm_hw_params_can_disable_period_wakeup(const snd_pcm_hw_params_t *params); 00646 int snd_pcm_hw_params_supports_audio_wallclock_ts(const snd_pcm_hw_params_t *params); 00647 int snd_pcm_hw_params_get_rate_numden(const snd_pcm_hw_params_t *params, 00648 unsigned int *rate_num, 00649 unsigned int *rate_den); 00650 int snd_pcm_hw_params_get_sbits(const snd_pcm_hw_params_t *params); 00651 int snd_pcm_hw_params_get_fifo_size(const snd_pcm_hw_params_t *params); 00652 00653 #if 0 00654 typedef struct _snd_pcm_hw_strategy snd_pcm_hw_strategy_t; 00655 00656 /* choices need to be sorted on ascending badness */ 00657 typedef struct _snd_pcm_hw_strategy_simple_choices_list { 00658 unsigned int value; 00659 unsigned int badness; 00660 } snd_pcm_hw_strategy_simple_choices_list_t; 00661 00662 int snd_pcm_hw_params_strategy(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, 00663 const snd_pcm_hw_strategy_t *strategy, 00664 unsigned int badness_min, 00665 unsigned int badness_max); 00666 00667 void snd_pcm_hw_strategy_free(snd_pcm_hw_strategy_t *strategy); 00668 int snd_pcm_hw_strategy_simple(snd_pcm_hw_strategy_t **strategyp, 00669 unsigned int badness_min, 00670 unsigned int badness_max); 00671 int snd_pcm_hw_params_try_explain_failure(snd_pcm_t *pcm, 00672 snd_pcm_hw_params_t *fail, 00673 snd_pcm_hw_params_t *success, 00674 unsigned int depth, 00675 snd_output_t *out); 00676 00677 #endif 00678 00679 size_t snd_pcm_hw_params_sizeof(void); 00684 #define snd_pcm_hw_params_alloca(ptr) __snd_alloca(ptr, snd_pcm_hw_params) 00685 int snd_pcm_hw_params_malloc(snd_pcm_hw_params_t **ptr); 00686 void snd_pcm_hw_params_free(snd_pcm_hw_params_t *obj); 00687 void snd_pcm_hw_params_copy(snd_pcm_hw_params_t *dst, const snd_pcm_hw_params_t *src); 00688 00689 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_HW_PARAMS_API) 00690 00691 int snd_pcm_hw_params_get_access(const snd_pcm_hw_params_t *params, snd_pcm_access_t *_access); 00692 int snd_pcm_hw_params_test_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access); 00693 int snd_pcm_hw_params_set_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access); 00694 int snd_pcm_hw_params_set_access_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access); 00695 int snd_pcm_hw_params_set_access_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access); 00696 int snd_pcm_hw_params_set_access_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask); 00697 int snd_pcm_hw_params_get_access_mask(snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask); 00698 00699 int snd_pcm_hw_params_get_format(const snd_pcm_hw_params_t *params, snd_pcm_format_t *val); 00700 int snd_pcm_hw_params_test_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val); 00701 int snd_pcm_hw_params_set_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val); 00702 int snd_pcm_hw_params_set_format_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format); 00703 int snd_pcm_hw_params_set_format_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format); 00704 int snd_pcm_hw_params_set_format_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask); 00705 void snd_pcm_hw_params_get_format_mask(snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask); 00706 00707 int snd_pcm_hw_params_get_subformat(const snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat); 00708 int snd_pcm_hw_params_test_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat); 00709 int snd_pcm_hw_params_set_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat); 00710 int snd_pcm_hw_params_set_subformat_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat); 00711 int snd_pcm_hw_params_set_subformat_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat); 00712 int snd_pcm_hw_params_set_subformat_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask); 00713 void snd_pcm_hw_params_get_subformat_mask(snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask); 00714 00715 int snd_pcm_hw_params_get_channels(const snd_pcm_hw_params_t *params, unsigned int *val); 00716 int snd_pcm_hw_params_get_channels_min(const snd_pcm_hw_params_t *params, unsigned int *val); 00717 int snd_pcm_hw_params_get_channels_max(const snd_pcm_hw_params_t *params, unsigned int *val); 00718 int snd_pcm_hw_params_test_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00719 int snd_pcm_hw_params_set_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00720 int snd_pcm_hw_params_set_channels_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00721 int snd_pcm_hw_params_set_channels_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00722 int snd_pcm_hw_params_set_channels_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, unsigned int *max); 00723 int snd_pcm_hw_params_set_channels_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00724 int snd_pcm_hw_params_set_channels_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00725 int snd_pcm_hw_params_set_channels_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00726 00727 int snd_pcm_hw_params_get_rate(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00728 int snd_pcm_hw_params_get_rate_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00729 int snd_pcm_hw_params_get_rate_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00730 int snd_pcm_hw_params_test_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00731 int snd_pcm_hw_params_set_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00732 int snd_pcm_hw_params_set_rate_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00733 int snd_pcm_hw_params_set_rate_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00734 int snd_pcm_hw_params_set_rate_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir); 00735 int snd_pcm_hw_params_set_rate_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00736 int snd_pcm_hw_params_set_rate_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00737 int snd_pcm_hw_params_set_rate_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00738 int snd_pcm_hw_params_set_rate_resample(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00739 int snd_pcm_hw_params_get_rate_resample(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00740 int snd_pcm_hw_params_set_export_buffer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00741 int snd_pcm_hw_params_get_export_buffer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00742 int snd_pcm_hw_params_set_period_wakeup(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00743 int snd_pcm_hw_params_get_period_wakeup(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00744 00745 int snd_pcm_hw_params_get_period_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00746 int snd_pcm_hw_params_get_period_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00747 int snd_pcm_hw_params_get_period_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00748 int snd_pcm_hw_params_test_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00749 int snd_pcm_hw_params_set_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00750 int snd_pcm_hw_params_set_period_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00751 int snd_pcm_hw_params_set_period_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00752 int snd_pcm_hw_params_set_period_time_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir); 00753 int snd_pcm_hw_params_set_period_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00754 int snd_pcm_hw_params_set_period_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00755 int snd_pcm_hw_params_set_period_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00756 00757 int snd_pcm_hw_params_get_period_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir); 00758 int snd_pcm_hw_params_get_period_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir); 00759 int snd_pcm_hw_params_get_period_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir); 00760 int snd_pcm_hw_params_test_period_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val, int dir); 00761 int snd_pcm_hw_params_set_period_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val, int dir); 00762 int snd_pcm_hw_params_set_period_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir); 00763 int snd_pcm_hw_params_set_period_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir); 00764 int snd_pcm_hw_params_set_period_size_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *min, int *mindir, snd_pcm_uframes_t *max, int *maxdir); 00765 int snd_pcm_hw_params_set_period_size_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir); 00766 int snd_pcm_hw_params_set_period_size_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir); 00767 int snd_pcm_hw_params_set_period_size_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir); 00768 int snd_pcm_hw_params_set_period_size_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00769 00770 int snd_pcm_hw_params_get_periods(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00771 int snd_pcm_hw_params_get_periods_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00772 int snd_pcm_hw_params_get_periods_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00773 int snd_pcm_hw_params_test_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00774 int snd_pcm_hw_params_set_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00775 int snd_pcm_hw_params_set_periods_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00776 int snd_pcm_hw_params_set_periods_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00777 int snd_pcm_hw_params_set_periods_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir); 00778 int snd_pcm_hw_params_set_periods_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00779 int snd_pcm_hw_params_set_periods_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00780 int snd_pcm_hw_params_set_periods_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00781 int snd_pcm_hw_params_set_periods_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00782 00783 int snd_pcm_hw_params_get_buffer_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00784 int snd_pcm_hw_params_get_buffer_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00785 int snd_pcm_hw_params_get_buffer_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00786 int snd_pcm_hw_params_test_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00787 int snd_pcm_hw_params_set_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00788 int snd_pcm_hw_params_set_buffer_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00789 int snd_pcm_hw_params_set_buffer_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00790 int snd_pcm_hw_params_set_buffer_time_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir); 00791 int snd_pcm_hw_params_set_buffer_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00792 int snd_pcm_hw_params_set_buffer_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00793 int snd_pcm_hw_params_set_buffer_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00794 00795 int snd_pcm_hw_params_get_buffer_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00796 int snd_pcm_hw_params_get_buffer_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00797 int snd_pcm_hw_params_get_buffer_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00798 int snd_pcm_hw_params_test_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val); 00799 int snd_pcm_hw_params_set_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val); 00800 int snd_pcm_hw_params_set_buffer_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00801 int snd_pcm_hw_params_set_buffer_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00802 int snd_pcm_hw_params_set_buffer_size_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *min, snd_pcm_uframes_t *max); 00803 int snd_pcm_hw_params_set_buffer_size_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00804 int snd_pcm_hw_params_set_buffer_size_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00805 int snd_pcm_hw_params_set_buffer_size_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00806 00807 #endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_HW_PARAMS_API */ 00808 00809 int snd_pcm_hw_params_get_min_align(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00810 00820 size_t snd_pcm_sw_params_sizeof(void); 00825 #define snd_pcm_sw_params_alloca(ptr) __snd_alloca(ptr, snd_pcm_sw_params) 00826 int snd_pcm_sw_params_malloc(snd_pcm_sw_params_t **ptr); 00827 void snd_pcm_sw_params_free(snd_pcm_sw_params_t *obj); 00828 void snd_pcm_sw_params_copy(snd_pcm_sw_params_t *dst, const snd_pcm_sw_params_t *src); 00829 int snd_pcm_sw_params_get_boundary(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00830 00831 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_SW_PARAMS_API) 00832 00833 int snd_pcm_sw_params_set_tstamp_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_t val); 00834 int snd_pcm_sw_params_get_tstamp_mode(const snd_pcm_sw_params_t *params, snd_pcm_tstamp_t *val); 00835 int snd_pcm_sw_params_set_avail_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00836 int snd_pcm_sw_params_get_avail_min(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00837 int snd_pcm_sw_params_set_period_event(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, int val); 00838 int snd_pcm_sw_params_get_period_event(const snd_pcm_sw_params_t *params, int *val); 00839 int snd_pcm_sw_params_set_start_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00840 int snd_pcm_sw_params_get_start_threshold(const snd_pcm_sw_params_t *paramsm, snd_pcm_uframes_t *val); 00841 int snd_pcm_sw_params_set_stop_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00842 int snd_pcm_sw_params_get_stop_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00843 int snd_pcm_sw_params_set_silence_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00844 int snd_pcm_sw_params_get_silence_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00845 int snd_pcm_sw_params_set_silence_size(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00846 int snd_pcm_sw_params_get_silence_size(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00847 00848 #endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_SW_PARAMS_API */ 00849 00852 /* include old API */ 00853 #ifndef ALSA_LIBRARY_BUILD 00854 #if defined(ALSA_PCM_OLD_HW_PARAMS_API) || defined(ALSA_PCM_OLD_SW_PARAMS_API) 00855 #include "pcm_old.h" 00856 #endif 00857 #endif 00858 00866 size_t snd_pcm_access_mask_sizeof(void); 00871 #define snd_pcm_access_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_access_mask) 00872 int snd_pcm_access_mask_malloc(snd_pcm_access_mask_t **ptr); 00873 void snd_pcm_access_mask_free(snd_pcm_access_mask_t *obj); 00874 void snd_pcm_access_mask_copy(snd_pcm_access_mask_t *dst, const snd_pcm_access_mask_t *src); 00875 void snd_pcm_access_mask_none(snd_pcm_access_mask_t *mask); 00876 void snd_pcm_access_mask_any(snd_pcm_access_mask_t *mask); 00877 int snd_pcm_access_mask_test(const snd_pcm_access_mask_t *mask, snd_pcm_access_t val); 00878 int snd_pcm_access_mask_empty(const snd_pcm_access_mask_t *mask); 00879 void snd_pcm_access_mask_set(snd_pcm_access_mask_t *mask, snd_pcm_access_t val); 00880 void snd_pcm_access_mask_reset(snd_pcm_access_mask_t *mask, snd_pcm_access_t val); 00881 00891 size_t snd_pcm_format_mask_sizeof(void); 00896 #define snd_pcm_format_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_format_mask) 00897 int snd_pcm_format_mask_malloc(snd_pcm_format_mask_t **ptr); 00898 void snd_pcm_format_mask_free(snd_pcm_format_mask_t *obj); 00899 void snd_pcm_format_mask_copy(snd_pcm_format_mask_t *dst, const snd_pcm_format_mask_t *src); 00900 void snd_pcm_format_mask_none(snd_pcm_format_mask_t *mask); 00901 void snd_pcm_format_mask_any(snd_pcm_format_mask_t *mask); 00902 int snd_pcm_format_mask_test(const snd_pcm_format_mask_t *mask, snd_pcm_format_t val); 00903 int snd_pcm_format_mask_empty(const snd_pcm_format_mask_t *mask); 00904 void snd_pcm_format_mask_set(snd_pcm_format_mask_t *mask, snd_pcm_format_t val); 00905 void snd_pcm_format_mask_reset(snd_pcm_format_mask_t *mask, snd_pcm_format_t val); 00906 00916 size_t snd_pcm_subformat_mask_sizeof(void); 00921 #define snd_pcm_subformat_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_subformat_mask) 00922 int snd_pcm_subformat_mask_malloc(snd_pcm_subformat_mask_t **ptr); 00923 void snd_pcm_subformat_mask_free(snd_pcm_subformat_mask_t *obj); 00924 void snd_pcm_subformat_mask_copy(snd_pcm_subformat_mask_t *dst, const snd_pcm_subformat_mask_t *src); 00925 void snd_pcm_subformat_mask_none(snd_pcm_subformat_mask_t *mask); 00926 void snd_pcm_subformat_mask_any(snd_pcm_subformat_mask_t *mask); 00927 int snd_pcm_subformat_mask_test(const snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val); 00928 int snd_pcm_subformat_mask_empty(const snd_pcm_subformat_mask_t *mask); 00929 void snd_pcm_subformat_mask_set(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val); 00930 void snd_pcm_subformat_mask_reset(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val); 00931 00941 size_t snd_pcm_status_sizeof(void); 00946 #define snd_pcm_status_alloca(ptr) __snd_alloca(ptr, snd_pcm_status) 00947 int snd_pcm_status_malloc(snd_pcm_status_t **ptr); 00948 void snd_pcm_status_free(snd_pcm_status_t *obj); 00949 void snd_pcm_status_copy(snd_pcm_status_t *dst, const snd_pcm_status_t *src); 00950 snd_pcm_state_t snd_pcm_status_get_state(const snd_pcm_status_t *obj); 00951 void snd_pcm_status_get_trigger_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr); 00952 void snd_pcm_status_get_trigger_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr); 00953 void snd_pcm_status_get_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr); 00954 void snd_pcm_status_get_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr); 00955 void snd_pcm_status_get_audio_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr); 00956 snd_pcm_sframes_t snd_pcm_status_get_delay(const snd_pcm_status_t *obj); 00957 snd_pcm_uframes_t snd_pcm_status_get_avail(const snd_pcm_status_t *obj); 00958 snd_pcm_uframes_t snd_pcm_status_get_avail_max(const snd_pcm_status_t *obj); 00959 snd_pcm_uframes_t snd_pcm_status_get_overrange(const snd_pcm_status_t *obj); 00960 00970 const char *snd_pcm_type_name(snd_pcm_type_t type); 00971 const char *snd_pcm_stream_name(const snd_pcm_stream_t stream); 00972 const char *snd_pcm_access_name(const snd_pcm_access_t _access); 00973 const char *snd_pcm_format_name(const snd_pcm_format_t format); 00974 const char *snd_pcm_format_description(const snd_pcm_format_t format); 00975 const char *snd_pcm_subformat_name(const snd_pcm_subformat_t subformat); 00976 const char *snd_pcm_subformat_description(const snd_pcm_subformat_t subformat); 00977 snd_pcm_format_t snd_pcm_format_value(const char* name); 00978 const char *snd_pcm_tstamp_mode_name(const snd_pcm_tstamp_t mode); 00979 const char *snd_pcm_state_name(const snd_pcm_state_t state); 00980 00990 int snd_pcm_dump(snd_pcm_t *pcm, snd_output_t *out); 00991 int snd_pcm_dump_hw_setup(snd_pcm_t *pcm, snd_output_t *out); 00992 int snd_pcm_dump_sw_setup(snd_pcm_t *pcm, snd_output_t *out); 00993 int snd_pcm_dump_setup(snd_pcm_t *pcm, snd_output_t *out); 00994 int snd_pcm_hw_params_dump(snd_pcm_hw_params_t *params, snd_output_t *out); 00995 int snd_pcm_sw_params_dump(snd_pcm_sw_params_t *params, snd_output_t *out); 00996 int snd_pcm_status_dump(snd_pcm_status_t *status, snd_output_t *out); 00997 01007 int snd_pcm_mmap_begin(snd_pcm_t *pcm, 01008 const snd_pcm_channel_area_t **areas, 01009 snd_pcm_uframes_t *offset, 01010 snd_pcm_uframes_t *frames); 01011 snd_pcm_sframes_t snd_pcm_mmap_commit(snd_pcm_t *pcm, 01012 snd_pcm_uframes_t offset, 01013 snd_pcm_uframes_t frames); 01014 snd_pcm_sframes_t snd_pcm_mmap_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size); 01015 snd_pcm_sframes_t snd_pcm_mmap_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size); 01016 snd_pcm_sframes_t snd_pcm_mmap_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size); 01017 snd_pcm_sframes_t snd_pcm_mmap_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size); 01018 01028 int snd_pcm_format_signed(snd_pcm_format_t format); 01029 int snd_pcm_format_unsigned(snd_pcm_format_t format); 01030 int snd_pcm_format_linear(snd_pcm_format_t format); 01031 int snd_pcm_format_float(snd_pcm_format_t format); 01032 int snd_pcm_format_little_endian(snd_pcm_format_t format); 01033 int snd_pcm_format_big_endian(snd_pcm_format_t format); 01034 int snd_pcm_format_cpu_endian(snd_pcm_format_t format); 01035 int snd_pcm_format_width(snd_pcm_format_t format); /* in bits */ 01036 int snd_pcm_format_physical_width(snd_pcm_format_t format); /* in bits */ 01037 snd_pcm_format_t snd_pcm_build_linear_format(int width, int pwidth, int unsignd, int big_endian); 01038 ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples); 01039 u_int8_t snd_pcm_format_silence(snd_pcm_format_t format); 01040 u_int16_t snd_pcm_format_silence_16(snd_pcm_format_t format); 01041 u_int32_t snd_pcm_format_silence_32(snd_pcm_format_t format); 01042 u_int64_t snd_pcm_format_silence_64(snd_pcm_format_t format); 01043 int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int samples); 01044 01045 snd_pcm_sframes_t snd_pcm_bytes_to_frames(snd_pcm_t *pcm, ssize_t bytes); 01046 ssize_t snd_pcm_frames_to_bytes(snd_pcm_t *pcm, snd_pcm_sframes_t frames); 01047 long snd_pcm_bytes_to_samples(snd_pcm_t *pcm, ssize_t bytes); 01048 ssize_t snd_pcm_samples_to_bytes(snd_pcm_t *pcm, long samples); 01049 01050 int snd_pcm_area_silence(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset, 01051 unsigned int samples, snd_pcm_format_t format); 01052 int snd_pcm_areas_silence(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset, 01053 unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format); 01054 int snd_pcm_area_copy(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset, 01055 const snd_pcm_channel_area_t *src_channel, snd_pcm_uframes_t src_offset, 01056 unsigned int samples, snd_pcm_format_t format); 01057 int snd_pcm_areas_copy(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset, 01058 const snd_pcm_channel_area_t *src_channels, snd_pcm_uframes_t src_offset, 01059 unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format); 01060 01071 typedef enum _snd_pcm_hook_type { 01072 SND_PCM_HOOK_TYPE_HW_PARAMS = 0, 01073 SND_PCM_HOOK_TYPE_HW_FREE, 01074 SND_PCM_HOOK_TYPE_CLOSE, 01075 SND_PCM_HOOK_TYPE_LAST = SND_PCM_HOOK_TYPE_CLOSE 01076 } snd_pcm_hook_type_t; 01077 01079 typedef struct _snd_pcm_hook snd_pcm_hook_t; 01081 typedef int (*snd_pcm_hook_func_t)(snd_pcm_hook_t *hook); 01082 snd_pcm_t *snd_pcm_hook_get_pcm(snd_pcm_hook_t *hook); 01083 void *snd_pcm_hook_get_private(snd_pcm_hook_t *hook); 01084 void snd_pcm_hook_set_private(snd_pcm_hook_t *hook, void *private_data); 01085 int snd_pcm_hook_add(snd_pcm_hook_t **hookp, snd_pcm_t *pcm, 01086 snd_pcm_hook_type_t type, 01087 snd_pcm_hook_func_t func, void *private_data); 01088 int snd_pcm_hook_remove(snd_pcm_hook_t *hook); 01089 01100 typedef struct _snd_pcm_scope_ops { 01104 int (*enable)(snd_pcm_scope_t *scope); 01108 void (*disable)(snd_pcm_scope_t *scope); 01112 void (*start)(snd_pcm_scope_t *scope); 01116 void (*stop)(snd_pcm_scope_t *scope); 01120 void (*update)(snd_pcm_scope_t *scope); 01124 void (*reset)(snd_pcm_scope_t *scope); 01128 void (*close)(snd_pcm_scope_t *scope); 01129 } snd_pcm_scope_ops_t; 01130 01131 snd_pcm_uframes_t snd_pcm_meter_get_bufsize(snd_pcm_t *pcm); 01132 unsigned int snd_pcm_meter_get_channels(snd_pcm_t *pcm); 01133 unsigned int snd_pcm_meter_get_rate(snd_pcm_t *pcm); 01134 snd_pcm_uframes_t snd_pcm_meter_get_now(snd_pcm_t *pcm); 01135 snd_pcm_uframes_t snd_pcm_meter_get_boundary(snd_pcm_t *pcm); 01136 int snd_pcm_meter_add_scope(snd_pcm_t *pcm, snd_pcm_scope_t *scope); 01137 snd_pcm_scope_t *snd_pcm_meter_search_scope(snd_pcm_t *pcm, const char *name); 01138 int snd_pcm_scope_malloc(snd_pcm_scope_t **ptr); 01139 void snd_pcm_scope_set_ops(snd_pcm_scope_t *scope, 01140 const snd_pcm_scope_ops_t *val); 01141 void snd_pcm_scope_set_name(snd_pcm_scope_t *scope, const char *val); 01142 const char *snd_pcm_scope_get_name(snd_pcm_scope_t *scope); 01143 void *snd_pcm_scope_get_callback_private(snd_pcm_scope_t *scope); 01144 void snd_pcm_scope_set_callback_private(snd_pcm_scope_t *scope, void *val); 01145 int snd_pcm_scope_s16_open(snd_pcm_t *pcm, const char *name, 01146 snd_pcm_scope_t **scopep); 01147 int16_t *snd_pcm_scope_s16_get_channel_buffer(snd_pcm_scope_t *scope, 01148 unsigned int channel); 01149 01160 typedef enum _snd_spcm_latency { 01163 SND_SPCM_LATENCY_STANDARD = 0, 01166 SND_SPCM_LATENCY_MEDIUM, 01169 SND_SPCM_LATENCY_REALTIME 01170 } snd_spcm_latency_t; 01171 01173 typedef enum _snd_spcm_xrun_type { 01175 SND_SPCM_XRUN_IGNORE = 0, 01177 SND_SPCM_XRUN_STOP 01178 } snd_spcm_xrun_type_t; 01179 01181 typedef enum _snd_spcm_duplex_type { 01183 SND_SPCM_DUPLEX_LIBERAL = 0, 01185 SND_SPCM_DUPLEX_PEDANTIC 01186 } snd_spcm_duplex_type_t; 01187 01188 int snd_spcm_init(snd_pcm_t *pcm, 01189 unsigned int rate, 01190 unsigned int channels, 01191 snd_pcm_format_t format, 01192 snd_pcm_subformat_t subformat, 01193 snd_spcm_latency_t latency, 01194 snd_pcm_access_t _access, 01195 snd_spcm_xrun_type_t xrun_type); 01196 01197 int snd_spcm_init_duplex(snd_pcm_t *playback_pcm, 01198 snd_pcm_t *capture_pcm, 01199 unsigned int rate, 01200 unsigned int channels, 01201 snd_pcm_format_t format, 01202 snd_pcm_subformat_t subformat, 01203 snd_spcm_latency_t latency, 01204 snd_pcm_access_t _access, 01205 snd_spcm_xrun_type_t xrun_type, 01206 snd_spcm_duplex_type_t duplex_type); 01207 01208 int snd_spcm_init_get_params(snd_pcm_t *pcm, 01209 unsigned int *rate, 01210 snd_pcm_uframes_t *buffer_size, 01211 snd_pcm_uframes_t *period_size); 01212 01222 /* Deprecated functions, for compatibility */ 01223 const char *snd_pcm_start_mode_name(snd_pcm_start_t mode) __attribute__((deprecated)); 01224 const char *snd_pcm_xrun_mode_name(snd_pcm_xrun_t mode) __attribute__((deprecated)); 01225 int snd_pcm_sw_params_set_start_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_start_t val) __attribute__((deprecated)); 01226 snd_pcm_start_t snd_pcm_sw_params_get_start_mode(const snd_pcm_sw_params_t *params) __attribute__((deprecated)); 01227 int snd_pcm_sw_params_set_xrun_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_xrun_t val) __attribute__((deprecated)); 01228 snd_pcm_xrun_t snd_pcm_sw_params_get_xrun_mode(const snd_pcm_sw_params_t *params) __attribute__((deprecated)); 01229 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_SW_PARAMS_API) 01230 int snd_pcm_sw_params_set_xfer_align(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val) __attribute__((deprecated)); 01231 int snd_pcm_sw_params_get_xfer_align(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) __attribute__((deprecated)); 01232 int snd_pcm_sw_params_set_sleep_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, unsigned int val) __attribute__((deprecated)); 01233 int snd_pcm_sw_params_get_sleep_min(const snd_pcm_sw_params_t *params, unsigned int *val) __attribute__((deprecated)); 01234 #endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_SW_PARAMS_API */ 01235 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_HW_PARAMS_API) 01236 int snd_pcm_hw_params_get_tick_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01237 int snd_pcm_hw_params_get_tick_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01238 int snd_pcm_hw_params_get_tick_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01239 int snd_pcm_hw_params_test_tick_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) __attribute__((deprecated)); 01240 int snd_pcm_hw_params_set_tick_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) __attribute__((deprecated)); 01241 int snd_pcm_hw_params_set_tick_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01242 int snd_pcm_hw_params_set_tick_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01243 int snd_pcm_hw_params_set_tick_time_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir) __attribute__((deprecated)); 01244 int snd_pcm_hw_params_set_tick_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01245 int snd_pcm_hw_params_set_tick_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01246 int snd_pcm_hw_params_set_tick_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01247 #endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_HW_PARAMS_API */ 01248 01251 #ifdef __cplusplus 01252 } 01253 #endif 01254 01255 #endif /* __ALSA_PCM_H */